# Private equity-owned Fathom buys three Rochester aerospace and defense suppliers

TCS brings circuit board assemblies and wire harnesses, and PGM supports customers through full-rate production. CORE Industrial Partners, which owns Fathom, gave no price.

Published 2026-10-14 by TGOs. Canonical: https://tgos.io/news/2026/10/14/private-equity-owned-fathom-buys-three-rochester-aerospace-and/

Fathom Digital Manufacturing has acquired TCS Industries, TCS Electronics and Precision Grinding & Manufacturing (PGM), all based in Rochester, New York, its owner CORE Industrial Partners announced Tuesday, Oct. 13.[1] CORE affiliates took the Hartland, Wisconsin, contract manufacturer private in May 2024.[1][4] The deals bring Fathom to 10 facilities and about 700 employees.[1]

TCS adds printed circuit board assemblies and cable and wire harnesses, work that does not appear in the capabilities menu on Fathom's website.[1][2] PGM reaches further along the volume curve than the announcement's description of Fathom.[1] It supports aerospace and defense customers from low- and mid-volume manufacturing through full-rate production, while Fathom describes its own production services as low- to mid-volume.[1]

PGM's website says it is involved with "many critical programs for our armed forces" and makes components and assemblies for areas including electronic protection (countermeasures) and RF housings and covers.[3] Both TCS and PGM hold AS9100 certifications and International Traffic in Arms Regulations (ITAR) registrations.[1] The announcement says TCS serves customers primarily in aerospace and defense but gives no split between defense and commercial aerospace work at either company.[1]

## Why it matters

Fathom says the combination leaves it better positioned to support customers from early-stage development and prototyping through qualified, sustained production.[1] What has already changed is ownership: a contract manufacturer whose listed services include 3D printing, CNC machining and injection molding now owns electronics assembly and precision grinding shops that serve aerospace and defense customers.[1]

## Sources

1. Fathom Digital Manufacturing: Fathom Digital Manufacturing Expands Aerospace and Defense Platform with Three Strategic Acquisitions (Oct. 13, 2026) <https://fathommfg.com/company/news-press/fathom-digital-manufacturing-expands-aerospace-and-defense-platform-with-three-strategic-acquisitions/>
2. Fathom Digital Manufacturing: Home page <https://fathommfg.com/>
3. Precision Grinding & Manufacturing: Defense <https://www.pgmcorp.com/Markets-Served/Defense>
4. Fathom Digital Manufacturing Corp.: Form 8-K (May 21, 2024) <https://www.sec.gov/Archives/edgar/data/1836176/000119312524144026/d817470d8k.htm>